[BUG] UI show only part of str

[AnsonHwang86]

Hello, I have a json str in the field. but when I try to edit it, I see only part of them.

When I use select to get the value, the full string return.

But when I click arrow
to save the field. It will only save the part of string which can be seen, the the part not seen will lost.

MY schema is like

multi builderValue: str;